Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Ludwig Wittgenstein
Immanuel Kant
John Stuart Mill
Francis Bacon
Bertrand Russell
Arthur Schopenhauer
Alfred James Swinburne
George Boole
Georg Wilhelm Friedrich Hegel
Aristotle
Plato
Bertrand Russell and Alfred North Whitehead
Lewis Carroll
John Venn
Edmund Callis Berkeley
Adam Smith
Charles S. Peirce
Carveth Read
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.